Film reel



sePt- 19, 1944- J. M. GOLDBERG 2,358,504

FILM REEL Filed March 9, '1944 2 sheets-shea 1 INVENTOR f A005 M 50u55@ www@ ATTORNEY.

Sept. 19,1944. y J, M GQLDERG 2,358,504

FILM REEL FiledMarch 9, 1944 '2 sheets-sheet 2 4 @man uw@ 1?@ C9 I INVENTOR BY MM ATTORNEY.

Patented sape. 19,?

C Chime. (Cl. 24%70) This invention relates to improvements in film reels ofthe type employed in connection with photographic apparatus. such as cameras and projectors.

It is the object of this invention to produce a reel o! a simple and substantial construction that can be manufactured and sold ata comparatively low price and which shall be of rugged and substantial construction.

Another obiectlof this invention is -toproduce a reel of such construction that it will require aminimum of labor in assembling and for which the various parts can be constructed by dies in such a manner as to simplify the construction and increase the speed at which it can be manufactured.

Y Having set out the objects of the invention, the reel that forms the subject o! this invention will now be described in detail and for this'purpose reference will be had to the accompanying drawings in which the invention has been illustrated in its preferred form. and in which:

Figure 1 is a side elevation of a reel embodying my invention;

Figure 2 is an edge elevation thereof;

Figure 3 is a section taken on line 2 2, Figure 2; v

Figure 4`is a section taken on line -I-l, Figure 1; and

Figures la, 2a, Scand 4a correspond respectively to Figures 1, 2, 3 and 4 and show a modified form of construction. v

'I'he reel consists of two sides which' have been We now have an assembly comprising the two shallow cylindrical c ups which. are assembled so as to form a drum-like member which serves as a spacer for sides il. Each of the two cups has its bottom provided with openings i8 that are. boundedby cylindrical flanges ii. In the drawings there are four openings I8. spaced ninety degrecs apart. The bottoms are also providedv with.

central openings as shown in Figure 3. l'I'he sides areprovided with openings corresponding in size and position to the` outwardly extending flanges I which project through the openings in the t sides, after which the outer edges of the flanges are turned outwardly as indicated at 'in Figure 4. 'I'his construction clamps thesides rigidly against the ends of the drum-like hub and forms a spool for the reception of nlm. The distance between the inner surfaces of sidesl0 correspond -to the width of the film and can be made to accommodate any desired width. The cylindrical wall of the hub is-provided with a transverse cut .winding operation. For the purpose oi.' assuring designated by reference numerals it. These sides are identical in size and shape and have therefore been designated by the same reference nucylindrical ilange il thatis integral with the bottom of the cup. '.Ihebottom of the cup is provided along its peripheral edge with a rabbet I5 as shown more particularly inFigure 4. The cylindrical wall' or flange of cup rI2 hasv been designated by referencenumeral It. The inside diameter of thel cylindrical wall 'il is slightly larger than the outsidejdiameterfof wall Il so that the two oups can'be assembled by a ytelescopic movement. *Afterthe cups havebeen assembled, the edge of wall II is turned inwardly and positioned in the rabbet Il as shown at II. '55 readily accessible through one of the dpenings 2l.

that the two cup-llke-members comprising the hubwill not rotate relative to each other, tongues 22 are pressed inwardly as shown in Figure 3. lhesetongues provide a positive interlock and assures that the two side members will always retain .their position at all times, regardless of any force that might be exterted tending to rotatably displace them.I In the embodiment illustrated, the sides are provided with four large openings 2l and four Vsinaller openings 24, of a pleasing outline. It is to vbe understood, of course, that any other suitable design can be employed. The openings IB serve for the reception .of the operators ilngers in applying and removing the reel from a spindle. One side is provided with a square opening having diagonal projections 2i and the other a circular opening 1 2l, all as is quite common vin the construction of is the smaller in diameter, is provided with a reels' employed with moving picture apparatus.

been drawn, the edge'll is turned "inwardly by,

a suitable apparatus and if, the parts are made carefully, there is enoughfrictional resistance to prevent relative rotary movement.' However, to

that no relative rotary movement can take place, the tongues 22 have been provided.

The transverse cut 2| is positioned so as-to be After the hub has been assembled with this cylin' drical flanges extending outwardly, the sides Il are quickly and easily/put into position and seto the hub bymeans o! certain tools that some slight particular from the sides employed in the modiiication already described. 331e hub in the modined construction is formed from two parts which have been designated -by referencenumerals lia and 13a. -The-two parts of the hub are drawn from sheet metal by suitable dies.

1- ynidiniformdent sus to permit-me operator -toconvenientlyinssrttheillmintotheopeninn by 'a' drum comprisingtwo` identical members rigidly secured in concentric posi- Y tion' to the sides ot the reel: The sides ot the reelare provided asin Figure lwithopenings Il and 2i for the reception o! a spindle.

From the above description it will-be seen that the reel that forms the subject of this'invention is of a simple and substantial construction and oi' such a design that it can be manufactured almost wholly by means of machinery and requires a minimum of hand work.

but instead of one telescoping over the other,

they are provided with inwardly extending flanges ila. 'nie openings ila are bounded by outwardly extending cylindrical walls ita that extend through correspondingly positioned openings in the sides and are ilanged outwardly so as to securely clamp the sidesv in position. Theout- `wardly iair'ned ends of the manges have been designated by reference numeral Zla.

' The sides lla are attached to the hubmembers before the latter are interconnected with operation -of crimping the'flanges Ita. After the sides and the two parts of the hub have been intefconnected, they are assembled in concentric thesidestothedrum.

- Having described the invention what is claimed -asnewis:

1. .A nlm reel comprising. 1u combination, two sides, and a spacer hub formed from two round vbox-like parts assembled with their open ends in opposed relation, the bottoms forming the ends o! a drum, means for interconnecting the parts to resist dorcesI tending to eilect relative movement, the ends of the drum having each a central opening and a plurality oi' angularly spaced openings bounded by outwardly extending walls torming thimbles, the sides having. openings corresponding in number, sise and position to the thimbles and receiving the latter, the ends oi the thimbles beingA turned outwardly to secure 2. A film reel comprising, v'in combination, two sides, and a spacer hub formed from -two round box-like parts assembled with 'their open ends in opposed relation, the bottoms forming the ends of position by means ofa suitable tool, and flanges ila are spot-welded so as to rigidly and securely interconnect the two parts.

For the purpose of admitting the electrodes of the. spot-Welder, the sides have been provided with openings 21. Either as an alternative means for interconnecting the two parts, or in addition -to lthe spot-welding of flanges ila, tongues 28 may be cut from the bottoms of the hub members and bent inwardly into the position shown in Figure 4'. -'I'he`tongues Il may then be welded together, as indicated at 29, by means of electrodes pro- Jecting through the openings 21. The construction employing the tongues II- as illustrated in the drawings. simpliiles somewhat the operation oi' welding because'these tongues can extend in.

wardly to such a distance that the electrodes may enter perpendicularly through the openings 21, whereas if the comparatively narrow flanges ila are to be spot-welded, the welding machine must be slightly modified so as to enable the electrodes to engage the flanges without coming into contact with the metal of the reel except at their points.

V the interconnecting ilange il, whereas, in the second embodiment, the cup members are oi' less depth and are attached to each other by means 59' slightly rlarger than that of the other to permit a drum, the side wall of one part being telescopieach other andthis-simpliiles to s'ome extent the 'cally connected with the side wall 'or the other, the edge of the outer side wall being turned inwardly forming means for resisting forces tendlng to move the parts relative to each other, the ends of the drum having each a central opening and a plurality of angularly spaced openings bounded by outwardly lextending walls forming thimbles, the sides having openings corresponding in number, size and position to the thimbles and receiving the latter, the end of the thimbles euil turned outwardly to secure the sides to the A 3. A illm reel comprising. in combination, two sides, and a spacer hub formed from vtwo round box-like parts assembled with their open ends in opposed relation, the bottomsi'orming the ends of a drum, the inside diameter of one part being the two parts to be assembled by a telescopic movement, the bottom of theone of smaller diameter havingl a rabbet about its periphery, the wall of the larger part being turned inwardly into the rabbet, forming means for resisting forces tending to move the parts relative to each other, the

ends of the drum having each a central opening and a plurality of angularly spaced vopenings bounded by outwardly `extending walls forming thimbles, the sides having openings corresponding in number, size and position to the thimbles and receiving the latter, the ends of the thimbles being turned outwardly to secure the sides to the drum.

4. A iilm reel in accordance with'claim 2 in which the cylindrical walls ot the two parts form` ing the drum are provided with means comprising the drum are provided with means `comprising lugs formed integral with the outer wall iol' v of spot-walds. In both cases the hub is formed r7s resisting relative rotary movement.

6. Anim reel comprising. in combination, two

v sides, and a spacer hub formed from two round box-like parts whose side walls have their edges provided with inturned flanges, the two parts being assembled with the flanges in contact with each other, the bottoms of the parts forming the ends of a drum, means -for interconnecting the two parts to hold them in assembled relation, in opposition to forces tending to produce relative the sides to the drum.

movement, the ends of the drum having each' a central opening and a plurality of angularly spaced openings bounded by walls forming outwardly extending thimbles, the sides having openings corresponding in number, size and position to the thimbles and receiving the latter, the ends o1' the thimbles being turned outwardly to secure JACOB M. GOLDBERG. 

